@media only screen and (min-width: 768px) {
  /* desktop: */
  .grid-container {
    display: grid;
    grid-template-columns: 33% 33% 33%;
    gap: 15px 10px;}
}

body {
  background-color: white;
  font-family: franklin gothic;
  margin: 0px 0px 0px 0px;
}

h1, h2, h3, h4, h5, h6, p, a {
  margin: 0px 15px 0px 15px;
  padding: 0px 0px 0px 0px;
}

img {
  margin: 0px 0px 0px 0px;
  padding: 0px 0px 0px 0px;
  width: 95%;
  display: block;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

a {
  margin: 0px 15px 0px 15px;
  padding: 0px 0px 0px 0px;
  font-size: 28px;
}

/* unvisited link */
a:link {
  color: #000066;
  background-color: transparent;
  text-decoration: none;
  font-weight: bold;
}

/* visited link */
a:visited {
  color: #000066;
  background-color: transparent;
  text-decoration: none;
  font-weight: bold;
}

/* mouse over link */
a:hover {
  color: #0000aa;
  background-color: transparent;
  text-decoration: none;
  font-weight: bold;
}

/* selected link */
a:active {
  color: #000066;
  background-color: transparent;
  text-decoration: none;
  font-weight: bold;
}

article {
  padding: 0px 0px 0px 0px;
  color: white;
  max-width: 100%;
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-top: 0px;
  margin-bottom: 0px;
}

article.blauw {
  background-image: url(achtergrond/Pattern_Thijs_Kraaij.jpg);
  background-color: #004488;
  color: #000066;
}

article.wit {
  background-image: url(achtergrond/dgrey037.jpg);
  background-color: white;
  color: #000066;
}

h1 {
  text-align: center;
}

p {
  font-size: 24px;
}

hr {
  margin: 0px 0px 0px 0px;
}